What is the meaning of Charivari?

The noisy banging of pots and pans as a mock serenade to a newly married couple, or similar occasion.

Any loud, cacophonous noise or hubbub.

charivari, shivaree (mock serenade of discordant noise, notably to heckle a publicly reviled figure)

racket, banging in general, rumpus

Source: wiktionary.org